Hello,
I am trying to calculate the speed of the RAM I have in my computer (6GB), so I know which RAM I need to buy. I know you need to have a program called CPU-Z, which I have already got, but I am not sure what I have to do to calculate the RAM.
When I got the memory tab in the CPU-Z program, it shows the following:

If someone could give me the calculation, or calculate it for me, and give me the calculation so I know for future preference.

YOu can buy ram in many different speeds. They start around 800Mhz and ram can go up to 2666Mhz. HOWEVER, you need a really good motherboard that supports 2666Mhz, I assume your motherboard can only handle up to 1600Mhz, so that is what I would recommend buying.

1- Compatibility with the mother board/what the mother board supports.

2- Some problem don't show up often, but they are there, if you don't use the exact same RAM. Those problems could happen in some critical times. I used Kingstone RAM chips of the same speed and same, but different suffix, and problems happened only in heavy video gaming and after long times.

3- Some times no software can give you the real speed the RAM is capable of. Sometimes it cannot be reached without activating a special profile from bios. I suggest taking out the ram and read what's printed on it. Or if you can get the name from CPU-Z, search for that name.